Steam-jet blower.



G: T. 00E. STEAM JET BLOWER. APPLICATION TILED SEPT.3,1907.

Patented. June 1, 1909.

2 SHEETS-SHEET 1 6 C M 6 w W S a m 1 w n C a o STEAM JET BLOWER APPLICATION FILED SBPT.3,1907.

Patented June 1, 1909.

2 SHEETSSEBET 2.

V. m a v 0 w w UNrrEn STATES.

, -HARLEs 'rHonAs '(JOE, or ALBANY, NEW Yonx.

STEAM-JET BLOWER.

To all whom it may concern. l

Be ithnown that 1, CHARLES THOMAS (10E, a citizen of the United States, and a res dent of Albany, in the county of Albany" and State of New York, have invented certain new and useful Improvements in Steam-Jet Blowers,

' 21 between the adjustab e nuts 33. A guide of which the following is a. specification.

l jhis invention relates to steam jet blowers, and its organization comprises a pair of air ducts which coact with a pair of adjustable funnels, which latter are each I adjustably connected with a steam nozzle.

The invention is distinguished from apparatus of a similar nature in the adjustable features of its parts, so that they may be properly located with respect to each other, to suit varying steam pressures and varying quantities of air that may be required to be handled by the blower. These adjustments may be made without disturbing the operations of the apparatus. 1

In the accompanying drawings Figure 1 exemplifies a partial. vertical longitudinal section of a boiler with my invention connected therewith, Fig. 2 shows a partial side view of the invention, Fig. 3 is al ight hand end View of Fig. 2, Fig. 4 represents a partial section as on the line 4, 4-, of Fig.2, ,5

1 shows an end View and section of Fig. '4 on the line 5,. 5','a nd Fig. 6 is a partial enlarged section of a portion of Fig. 1 on the line (3,6. In the drawings the invention is shown with conduits 10 extending from the back end of a boiler to the ash pit thereof, and it is evident that the invention couldbeapplied to the front or side of a boiler, and aboveor below the grates thereof. To'thc conduits 10 are attached a )airof air ducts 11', joined at their front ends by a connecting bridge 12 and at their rear ends by a bridge 13. In an opening-in thebridge 12 is secured a steam pipe 14, and to the connecting bridge 12 is'also secured the steam pipe 15, on which latter are bound two collars 16.. A sleeve 17 with a flange 1. and collar 19 is supported on the pipe 15 between the collars 16;" The outside of the sleeve 17 is threaded for a cross-head 20, having-two cavities that carry the steam nozzle pipes 21 with the nozzles '22. From the said cavities extend. the pipes 23 that are joined by the cross-piping 24. On the outer end of the pipe 15 is supported a stulling box 25, and a pipe 26 extending from the cross-piping 24 enters into and is supported in the plpe 15, passing through the said stuiling box. Lo-

Specification of Letters Patent. Application filed September 3, 1907.

Patented Jiur 1909. Serial in. 391,010.

duets 1 1 are the funnels 8, the inner surfaces of which'taper from abo t their central ortions to their edges as, 'ownat 29 an 30. They are held in'p'osition by straps 31 that join with collars 32, sup orted on the pi es red 34 extends from the ducts 11- and 'engages with an openingformcd in 9. lug 35 ex tending from the cross-head 20. It'will be their appurtenances are placed in .position as shown. '.i"he funnels 28 are placedthe req'-, u1s1te distance from the ,mout

s of the ducts,-

by turning the flange 18 or collar 19, which 'i Wlll cause the cross-head with its appurter" nances to travel longitudinally on the sleeve '75" 17 ,and adjust the opening for the influx of the air between the outer surfaces ofthesaid funnels 28and the mouthsof the ducts 11.

The relative positions of the steam nozzles 22 and the funnels'28 are adjusted by means of p the nuts When steam is admitted. through thepipes 1 1 and 15 it finds its way out of the nozzle 22"andforces air into and through the ducts 11 and through condu ts 10, with the steam issuing' roin the nozzles.

With this invention it 1s;evident that the inlet ends of the ducts 11, and thepositions relative positions of the funnels 28 with the I ol'tho steam nozzles with respect to the funnels-28, depends upon the steam pressure in the boiler, and the vclocit and'quantity of air to be handled by the b ower.

A pair of ducts and a pair 01" funnels hav e been shown, but it iscvident that one duct and one l'unnel could bev used with a boiler.

When the steam leaves the steam nozzle it pulls air with it through the contracted'portion of the inner, surface of the i'unnel, and I r the flaring sides of the funnel after leaving the contracted portion allows the mixture to expand on entering the mouth of the duct and reduces its initial velocity somewhat. As soon as the mixture leaves the fun'nelit combines with air-drawn in through the an nular space between the funnel and the mouth ofthe duct. The duct, contracts from the enteringend to about its central portion where the charge from the funnel stri es the walls of the duct, and. alter Pau ing the cone -tracted partof the duct, the mixture again expands when traveling toward the outletof the saidducz, so as not to be of too great a ing, the hitter engaging the threads on said ply pipe adjacent, thereto, s pznr oi sleeve,'inenns to move the cross-heed relutivcly to the sleeve, e stexnn jet nozzle pipe extending from the cross-dread end in connection m ii the stezrrn sup ply pipe, it Funnel :tdj ustzttiy connected with the steam jet noz zle pipe, to very area [or the entrance of air through the duct, and to vary the force of the stezun sup 'dy.

3. in :r blowing; e ipnmtus the combination of a pair 01' ducts, e steiun supply pipe adjacent thereto, ft pair of steam nozzle pipes udjustehly connected with said pipe, and a, funnel adj ustuhly connected with each nozzle pipe and entering the ducts in a steam jet blowing apparatus the eoinhirmtion ot' a pair of duets, a steam supstezun nozzle pipes edjustztbiy connected witn said pipe, a tunnel adjust-ably supported on each oi said nozzle pipes entering V e ducts and having zt contracted portion on 1, no inner surface their-elf, and luring sides :it both ends oi said coi'itrected portion, said funnels Forming with the ducts annularspeees for the iniin of air. v p

5. In it steam jet blowing ep' rierstus the con'ibination oi' a pair of ducts, each duct being contracted at about its central portion, a steam supply pipe adjacent thereto, n pair oi steam nozzle pipes adj istehly,conneeted with said pipe, and a funnel having a central &5 coiitrncted portion edjustatblj secured on each steam nozzle pipe forming an annular space with the ducts,

6 in e steam jet blowing apparatus the coinbinetion ot a pair of air ducts, a steam supply pipe secured adjacent to the mouths of the ducts, at sleeve threaded on its outer surface supported on the said pipe, a crosshegrd carried on the sleeve, steam nozzle pipes extending from. the cress-hend and in connection with the steam supply p'po, inn-- int-ls edjustshly connected with the steaun jet nozzles, to vary the area for the entrance of air through the ducts, and the l'oree oi the siea'nn et forcing the air through the blowing apparatus.

7. in a steeni jet blowing apparatus the eonibinetion of a pair of duets, a stezun supply pipe leading l'ronr a connecting Fudge joining the ducts, u sleeve threaded on its outer surface supported on the said pipe, cross-heed having tt threaded opening which hitter engages with the threwied sleeve, and. having two cavities each of i h is threaded at opposite ends, it pair of steam pipes extending from the cavities on one side, crossa pipe exteaming from. the erossing and entering the pipe .e ending t' n the eonnectii bridge, s eh h he); connects I up between the two latterpi ms, r eein nozzle pipes each with u. nozzle exten in from the eevities in the e 'ossdiezid, u strap hoh' e 'l'unnel on ench nozzle p pe and loci; HULL) holding each funnel in position opposite the mouth of eeel'i. duct.

Sin and State of Net gust A. D. 1902 v I I CilARLEt-j THOMAS O E. Witnesses ed st Albany in the count oi Albany oi Au- "1 ori this 12 5i lay 

